Electric signaling device for preventing railway collisions.



No. 692,533. Patented Feb. 4, |902.

GjngL MoNAco. K ELECTRIC SIGNALING DEVICE FCR PRE'VENTING RAILWAY COLLISIDNS.

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No. 692,533. Patented Feb. 4, |902.

G.- DEL MUNACD.

vELEGTHIG SIGNALING'DEVICE FOB PREVENTING RAILWAY COLLISIDNS.

(Application led Sept. 4, 1900.)

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UNITED STATES Arnimv OFFICE.

GIUSEPPE DELKMONACO, OF TRIEST, AUSTRIA-HNGARY.

ELECTRIC SIGNALING DEVICE FIOR PREVENTING RAILWAY COLLISIONS.

SPECIFICATION forming part of Letters Patent No. 692,533, dated February 4, 1902.

Application iled September 4, 1900. Serial No. 28,950. (No model.) I l To all whom t may concern.'

- Be it known that I, GIUSEPPE DEL MONACO, a subject ofthe Emperor of Austria-Hungary, and a resident of Triest, Austria-Irlungary,` have invented certain new and useful Improvements in Electrical Signaling Apparatus, of which the following is a specification.

My'invention relates to an electric signaling device for preventing collisions of two railwaytrains running toward each other on the same track.

The apparatus is illustrated in the accompanying drawings, which show, in-Y Figure 1, a plan View of the mechanism placed in its casing, the cover of the latter being removed; Fig. 2, a vertical sectional view taken on line a: x, Fig. 1, as seen from the left-hand side, the operating-levers and tappets being shown,- however, in full lines; Fig. 3, part of a vertical sectional view taken at line y y, Fig. 1; Fig. 4, a detail of the catchand-rack device; Fig. 5, a diagram of the elec-v tric connections between the apparatuses of two stations; Fig. 6, a side view of a locomotive provided with the levers for actuating the signaling device, and Fig. 7 is a detail of mechanism for causing the two covers to open simultaneously.

The casing a, inclosing the apparatus, is provided with a stationary cover b and two slightly-movable covers ZJ and b2, each covering one-half of the casing and resting upon the cover b, which is provided at itslongitu-` dinal centerline with an inside projecting channel b3, by which enters a lever fastened to the locomotive. The covers b and b2 serve for excluding dust or rain from the channel b3 when the apparatus is not in use and are slidingly arranged on top of the cover b by bolts b4, entering into the slots b5 of the cover b and held closedby springs 196,1 connecting the exterior walls of channel b3 with the outside bolts b4. Between the front wheels of the locomotive is fastened a down-projecting lever c, Fig. 5, which in passing over the apparatus strikes against one of the oscillating leversf or f', secured, respectively, to rocking pivots c and c, and by turning these levers the tappets h or h', fastened to said pivots, will move one of the covers h' or b2 to one side. The other cover b2 or b is at the same time moved to the other side through some suitable mechanism connecting the two cov-` ers-for instance, by links 15, connecting the respective covers to the two arms of a rocking lever 16, pivoted to the frame or casing beneath the slot h3. Thereby the channel b3 is opened on top, permitting the bell-crank'D, mounted at the rear part of the locomotive, Fig. 6, to enter the channel. As soon as the locomotive has passed over the apparatus the covers b and h2 will close over the channel b3 by the tension of springs b, thus preventing dust or rain from entering the apparatus.

Spiral springs e are fastened at diagonally opposite corners of the casing a and connected to chains d d', engaging in sprocket-wheels A and fastened to lateral arms from the levers f and f', respectively, Figs. 1 and 2. The sprocket-wheels A are loosely mounted on the spindle A', and adjoining these wheels are ratchet-Wheels B, securely fastened to the spindle A and engaged by detents fastened to the wheelsV A, thereby permitting the wheels Ato be rotated idly in but one direction. The gear-wheels .e s3," mounted on the spindle A', engage the speed-pinions z s2, respectively, in order to rotate the armature C of a mag netic electric generator which produces the current actuating the apparatus.

The mounting of the apparatuses for connecting two stations will bedescribed later on, and it will be only remarked that the current produced by the generator of one apparatus is transmitted to anothervsimilar apparatus, or vice versa, and excites one ofthe electromagnets 'i t" in said apparatus.` The armatures l Z', respectively, of these magnets are thereby vibrated and alternately move the catches m mf, Fig. 1', pivotally mounted to the magnets 1l t" at 'k' lf2, which by engagement with the racks of thebars r r move these bars forward into the channel Z13, and thereby keep the rotatably-movable crosses s s', mounted on pivots k3, Figs. 1 and 3, from rotating,'and one of the arms of the cross engaged'engages the bellcrank D, Fig. 6, draws' it back, and bysuitable connections causes the steam-whistle to sound. The rack-bars r r' are guided by the pivots 7a4, moving in slots of the rack-bars, said pivots being connected to oscillating double cams n at the end of the arm o, placed on top of the rack-bars r r and engaging suitable notches p p of the catches m m. When IOO the bell-crankD of the locomotive in passing through the channel h3 catches the arm o of the double cam n, Fig. 4, and turns it around the pivot k* to one side, thereby retractil] g the catches m m from the rack-bar r or r', this bar is free to be redrawn into its normal position by the spring t, and the double cams n' are returned to notches pp by the action of spring w, and the catches m m are brought into normal engagement with the rack-bar by said spring w'. By the motion of the lever f (f) the link u is pulled back and turns one of the contacts U U ninety degrees, and one of the spring-pressed contact-leversV V', normally resting against the corresponding lever, is set free to engage with an earth-contact pin 13 or 13. The levers ff move in slots S, provided in the sides of the casing a, and the ratchet-wheels B are arranged in such manner that the inductor is turned onlyduring the time theleverf (f') is released, and beingdrawn back to its initial position by spring e. Consequently breaking of any part of the apparatus will be impossible, even when the locomotive is running at a high speed.

The connection between the apparatuses of two stations is shown by the diagram Fig. 5. The wire 2, fastened to the binding-post 1 of the inductor, is carried over the contact-sur face 3 of the contact-lever V, which is connected by the wire 4 with the contact-buttons 5 6 of the switch U. In a similar way the binding-post 1 is connected by wire 2 with 3, 4, 5, and 6 with switch U. The contact-buttons 7 7 S S are connected by wires 9 9 10 10 with the spools t' t" at one side and with the track-wire 11 and the station-wires 12 12, which connect at the stations N N/ with bells n2 and from these bells to the ground. The contact-buttons 13 13 also al'e connected with wires 14, leading to the ground.

The working of the apparatuses is as follows: Starting from the position of the parts as shown at the right-hand side ot' Fig. 1, it is supposed that a locomotive runs in the di rection from N to N, Fig. 5. Then the lever j" in swinging back into its normal position will excite the inductor of the apparatus marked I, While the forward oscillating motion of the said lever f' swings the contactlever U into engagement with contact-pins 5 and 8 and releases spring-pressed swinging contact-arm V', which is thereupon carried into engagement with earth-contact pin 13, these parts U and V being brought back in the initial position only after the returnlever motion is stopped. The circuit then is from binding-post 1 to 2 3 4 5 6, the converted contact-surface U', contact-button S, wire 10, track-wire 11 to the spool t' (contact U being open) of the apparatus II, through the windings of the spool t to wire 9, through contacts 7, 6, and 5 by wire 4, contact-bridge 3, and wire 2 to the inductor of said apparatus II, and from this over 2 3 4 5 6 7 9 of said apparatus II to the spool i', wire 12 to apparatus N, thence to ground. From clamp 1 of the apparatus I the current is carried over the closed contact V through wire 14 to the ground, and thereby the circuit is closed. By the current in the apparatus II both crosses 5 5 are stopped, as described above, and consequently when a locomotive runs over this apparatus toward a locomotive running on the same track the steam-whistle of this locomotive will sound, and at the same time the apparatus II will return in its normal position. Vice versa, when a locomotive runs in the direction from N to N the Working of the apparatus will be similar; but the current emanating from apparatus I I will cause the adjustment of the apparatus I. The circuit will be easily followed according to the above description, it' it is considered that the contacts of the apparatus II have to be closed.

I claim- 1. In an electric signaling device for preventing collisions ot railway-trains, the combination of a leverf (f) arranged to be oscillated by an arm or lever c on the locomotive, an inductor C of one apparatus and suitablyconnected electromagnets 'i t" of a similar apparatus excited in the reverse movement oi' said lever to its initial position, swinging armatures Z Z. coacting with said magnets, double-acting catches m nt actuated by said armatures; rack-bars r r', rotating crosses S s engaged thereby to lock au arm of the cross in the way of a bell-crank D on a locomotive running from the opposite direction, said bell-crank being thereby turned back aud by suitable connections causing the steamwhistle to sound.

2. In apparatus of the nature described the combination with the rack-bars 7', o", of the double cams n pivotally mounted in slots of said rackbars and provided with arms o adapted to be actuated through the bell-crank D of a locomotive passing over the apparatus, whereby the catches m, m are moved in opposite directions and the racksbars r, r disengaged from the catches are permitted to slide back in their normal position.

3. In apparatus of the nature described the combination with slidingly-movable covers b',

b2, covering the channel b3, when the appara- 4 GIUSEPPE DEL MONACO.

Witnesses EMILIO MONTE, VINCENT Bunns,

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